CertClad | Bevelback Cavity System | Radiata Pine | Installation Manual
© ITI Timspec Ltd | BC-RP-IM-V5 | CertClad is a registered Trademark of ITI Timspec Ltd
Last Updated March 2021
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6.6 PEF ROD
PEF backing rod must be closed cell polyethylene foam complying with E1/AS1 section 9.1.6.
It should have a diameter 25% larger than the gap width and should be pushed into the gap with a blunt
tool.
6.7 METER BOX
Meter box penetrations have a higher risk of water ingress, and as such all possible steps should be taken
to minimise this risk. A good quality meter box manufactured by a leading NZ supplier will certainly help
this.
Meter boxes are to be manufactured from aluminium, hot-dipped galvanised steel, glass-reinforced plastic
or other suitable rigid, UV resistant, non-combustible material. They also must be coated on the inside and
outside surfaces with a material giving a hard, durable finish providing a service life of not less than 20
years.
The door must have a troughed lip around the front perimeter and if a drain is present is should be made in
a way to minimise water entry.
6.8 INTERNAL LINING
Internal Linings must be of a suitable size and material to provide bracing where needed and to act as an
adequate barrier to air flow.
